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The designers of the UNIX operating system describe the ideal shell command language as one that is made up of a large set of simple

  1. The designers of the UNIX operating system describe the ideal shell command language as one that is made up of a large set of simple commands, each designed to perform one specialised task well. They also provided various means to combine these simple commands to form more powerful commands.
  • What tools are provided to combine the commands?
  • What are the advantages of this approach over providing a smaller set of much more powerful commands? What are the disadvantages?
  • If you know something about the UNIX or Linux command set, discuss the characteristics of UNIX/Linux commands that make it easier to combine these commands powerfully?
  1. Suppose that you are designing an app for a mobile device, such as iPhone or Android device. Name several services that you would expect to find in the operating system API to assist you with your program design.

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